Robust wireless transmission of regions of interest in JPEG2000

In this paper, we present a technique to robustly transmit regions of interest in the JPEG2000 framework. The technique assumes a prioritized region-of-interest coding and optimally assigns channel protection to the coded data according to the importance of every packet in the final bit-stream. The mean energy of the transform coefficients contained in a packet and the distance of a packet from the region of interest determine the importance of every packet. The channel protection is achieved by means of a concatenation of a cyclic redundancy check outer coder and an inner rate-compatible convolutional coder. Simulation results performed over a Rayleigh fading channel show an improvement in the visual quality of the reconstructed images.